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  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

  • MediaSPIP : Modification des droits de création d’objets et de publication définitive

    11 novembre 2010, par

    Par défaut, MediaSPIP permet de créer 5 types d’objets.
    Toujours par défaut les droits de création et de publication définitive de ces objets sont réservés aux administrateurs, mais ils sont bien entendu configurables par les webmestres.
    Ces droits sont ainsi bloqués pour plusieurs raisons : parce que le fait d’autoriser à publier doit être la volonté du webmestre pas de l’ensemble de la plateforme et donc ne pas être un choix par défaut ; parce qu’avoir un compte peut servir à autre choses également, (...)

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

Sur d’autres sites (7261)

  • FFmpeg - How to choose video stream based on resolution

    23 septembre 2023, par Sylven

    I want to choose the video stream based on it's quality, let's say I want to choose one video stream with certain resolution.

    


    Manually selecting the video stream is not good enough for me because I want to process many files in bulk and they have the video streams in different order, so always going for certain position would make me end up with different resolutions.

    


    I don't want to use filters as that would make me reencode which I don't need and would make it way slower.

    


    I've tried using the -map with metadata but the only key that is different is "variant_bitrate" which has slightly different values everytime, so unless I can use some wildcard or conditionals, I guess it won't work either.

    


    What I want to try now is to obtain the exact bitrate of the stream using ffmpeg or ffprobe and then pass it to the ffmpeg command so it ends in something like this :

    


    ffmpeg -i <url> -map m:variant_bitrate:1760000 ...</url>

    &#xA;

    PD : I've been reading the FFmpeg documentation and browsing the whole internet without luck.

    &#xA;

    Edit :&#xA;I managed to make it work by first using ffprobe to obtain stream info in json format (easier to parse), then I search for the string "height": 540 and extract next 50 lines (counted them manually so I'm sure I'll pick the value I need), then I search for the string variant_bitrate and then I use a regular expression to extract the bitrate. Once I have the bitrate I make use of the MacOS clipboard (with pbcopy and pbpaste) to pass the value to the final ffmpeg command through the -map option using a metadata selector.

    &#xA;

    ffprobe -v error -show_streams -of json "https://streamlink.com/master.m3u8?f=dash"&#xA;| grep -A 50 &#x27;"height": 540&#x27; &#xA;| grep variant_bitrate&#xA;| grep -oe &#x27;\([0-9.]*\)&#x27; &#xA;| pbcopy&#xA;&amp;&amp; ffmpeg -protocol_whitelist file,http,https,tcp,tls,crypto -i "https://streamlink.com/master.m3u8?f=dash" -map "0:a:0" -map "m:variant_bitrate:$(pbpaste)" -c copy "Output.mp4"&#xA;

    &#xA;

    (added line breaks for readability)

    &#xA;

    I know it looks kinda dirty but I didn't find any other way to achieve my requirement.

    &#xA;

  • cbs : Implement common parts of cbs-based bitstream filters separately

    1er janvier 2021, par Mark Thompson
    cbs : Implement common parts of cbs-based bitstream filters separately

    This allows removal of a lot of duplicated code between BSFs.
    • [DH] libavcodec/Makefile
    • [DH] libavcodec/cbs_bsf.c
    • [DH] libavcodec/cbs_bsf.h

  • Add a compat stdatomic.h implementation based on pthreads

    17 juillet 2016, par Anton Khirnov
    Add a compat stdatomic.h implementation based on pthreads

    Adapted from the code by Rémi Denis-Courmont from VLC
    • [DBH] compat/atomics/pthread/stdatomic.c
    • [DBH] compat/atomics/pthread/stdatomic.h
    • [DBH] configure

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